| 摘要 |
Information format converter receives input information represented by variable input resistance and converts this input information into an output signal whose frequency varies in accordance with the input information. A charge storage means charges over a time period in accordance with the resistance value of the input resistance and provides a signal to an output means, a bi-stable level detector, having two output threshold levels which changes state between the two levels when said storage means reaches either of the two levels. The converter can be connected so that the frequency of the output signal varies in direct proportion with the resistance value of the input or so that the period of the output signal varies in direct proportion with the resistance value of the input. The converter also uses a new bi-stable level detector which eliminates the requirement that precision reference voltages be used in the converter.
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